Home > Article > Web Front-end > Javascript implements text jumping effects
1. How to turn the string into fonts one by one, let us control
1 Get the content of the string
2 Clear the content of the string
3 Traverse the string, and then cut it out one by one.
4 Add positioning to the cut text
5 Reassign the added positioned text to the obtained element.
2. How to realize the text jumping after the mouse slides up
1 Define a variable 0
2 Define a timer
3 Let the variable continue to decrease
4 Change the top of the element == variable
5 When the variable reaches a certain height, let the variable continue to increase
6 When the variable is reduced to 0 (their own position),
7 Clear the animation to change the element's top = 0 (their own position)
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title> 文字跳动特效-vico </title> <style type="text/css"> #txtDom{ padding: 50px; width:500px; margin: 0 auto; font-size: 16px; font-family: "微软雅黑"; line-height: 1.3em; text-indent: 2em;} </style> </head> <body> <div id="txtDom"> 要是没有错误和失败,你就不会学到东西;要是没有痛苦,你就不会长大。 一旦你明白了这些,你就知道了一切事情都是为了某种目的而发生。 所以不要紧张或者认为生活不公平,因为一切事情都有原因,只有时间能诉说教会了我们什么。 </div> <script type="text/javascript"> var txtAnim = { len: 0, txtDom: "", arrTxt: [], init: function(obj) { this.obj = obj; this.txtDom = obj.innerHTML.replace(/\s+/g, ""); this.len = this.txtDom.length; obj.innerHTML = ""; this.addDom(); }, addDom: function() { for (var i = 0; i < this.len; i++) { var spanDom = document.createElement("span"); spanDom.innerHTML = this.txtDom.substring(i, i + 1); this.obj.appendChild(spanDom); this.arrTxt.push(spanDom); }; for (var j = 0; j < this.len; j++) { this.arrTxt[j].style.position = "relative"; }; this.strat(); }, strat: function() { for (var i = 0; i < this.len; i++) { this.arrTxt[i].onmouseover = function() { this.stop = 0; this.speed = -1; var $this = this; this.timer = setInterval(function() { $this.stop += $this.speed; //0 += -1 if ($this.stop <= -20) { $this.speed = 1; } $this.style.top = $this.stop + "px"; if ($this.stop >= 0) { clearInterval($this.timer) $this.style.top = 0 + "px"; }; }, 15); }; } } } var txtDom = document.getElementById("txtDom"); txtAnim.init(txtDom); </script> </body> </html>
The above is The editor introduces to you Javascrip to implement text jumping effects. I hope it will be helpful to everyone